Starlight has been the key to finding thousands of exoplanets over the past decade, but researchers have found a new way to ...

An interstellar comet changed its chemistry after passing the Sun, revealing hidden layers and a surprising mix of carbon ...

A comet named 3I/ATLAS was first discovered on July 1, 2025, and is located about 420 million miles away from Earth, ...

Usually, comets are dormant blocks of rock and ice. They only wake up when they get close to a star. The intense heat causes ...

Comet 41P/Tuttle-Giacobini-Kresak has begun acting a little unusually, but there are likely natural explanations before we go ...

The comet has been on our radars since the summer of 2025, when the Asteroid Terrestrial-impact Last Alert System (ATLAS) telescope in Río Hurtado, Chile, spotted it for the first time. It was ...

Space scientists have released a new image of the enigmatic space rock that traveled through our solar system. Researchers revealed the photograph shows the interstellar Comet 3I/ATLAS - speculated to ...

Interstellar comet 3I/ATLAS will soon reach its closest distance to Earth, so this may be our last, best chance to see this rare object before it heads back out into the universe, never to return.

Astronomers say that 3I/ATLAS, a comet that entered our solar system from interstellar space, is not sending out any radio signals that would suggest it is an alien spacecraft. That finding pushes ...